Decorative lampshade



FIG. 1 is a top perspective view of a decorative lampshade, according to one preferred embodiment of this invention;

FIG. 2 is a bottom perspective view of the decorative lampshade, as shown in FIG. 1;

FIG. 3 is a side view of the decorative lampshade, as shown in FIG. 1; and,

FIG. 4 is a cross section view of the decorative lampshade, as shown in FIG. 1, taken along line 4—4 in FIG. 3.

Broken lines in the Figures are for illustrative purposes only, and form no part of the claimed design or a specified embodiment thereof, pursuant to 37 CFR 1.152. 

The ornamental design for a decorative lampshade, as shown and described. 